Fluid dispensing apparatus



y 1945- E. E. EICKMEY-ER ETAL ,3 ,9

FLUID DISPENSING APPARATUS Filed July 10, 1939 9 Sheets-Sheet 1 RuseElumsmux 2 y 1945- E. E. EICKMEYER ETAL 2,375,903

FLUID DISPENSING APPARATUS 9 Sheets-Sheet 2 Filed July 10, 1939 F vlm/cn tors Em. C. EmKMEYaR Rmuom (a Hoavnru b y RLBER F. Zumamuu Htovnzyb May 15, 1945.

FLUID DISPENSING Filed July 10 APPARATUS 1939 9 Sheets-Sheet 3 O O O a:12.5 39 1:4 r:- w

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Inventors Cam. E. hcxmuea Amuonv Q Heaven Am F. lumammc K% Attorneys y1945- E. EICKMEYER ETAL 2,375,903

FLUID DISPENSING APPARATUS Filed July 10, 193 9 Sheets-Sheet 4 lnvniovaE. [mmwm Am RONY lillonvuu Rttornay;

May 15, 1945.

Filed July 10, 1939 9 Sheets-Sheet 6 TM I zralw/ e a, 44' cmnus numvensu A 31 'o 43 mi Ins/en tor-5 Em. E. Emmwm Alum a]:

May 15, 1945.

E. E. EICKMEYER ETAL FLUID DISPENSING APPARATUS Filed July 10, 1939IIEI. lZ

9 Sheets-Sheet 7 I 15.13 & '11 a '11 3'1z 3?) 2] e V Q CDSTPER BM 62/ AT3%, DELIVERED v E Ina/enters m" aafirmhmiii ALBERT F. lUMBRlNK omzya'May 15, 1945- E. E. EICKMEYER EIAL FLUID DISPENSING APPARATUS 9Sheets-Sheet 9 Filed July 10, 1939 RN W mm m MO l

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Patented May 15, 1945 FLUID DISPENSING APPARATUS Earl E. Eickmeyer,Anthony G. Horvath, and Albert F. Zumbrink, Dayton, Ohio, assignors toThe Dayton Pump and Manufacturing Com pany, Dayton, Ohio, a corporationof Ohio Application July 10, 1939, Serial No. 283,530

8 Claims.

This invention relates to liquid dispensing apparatus of the money valuecomputing type.

The invention provides a simple, economic and eihcient device forindicating the quantity of liquid dispensed together with the price perunit amount and the total computed value of the liquid dealt out. Theapparatus is particularly adapted for use in dispensing gasoline and thelike fuels at filling stations of the type which include a pump andmeter. The improved device herein described comprises a mechanism whichis actuated by the meter for visibly indicating the number of gallons offluid dispensed and the total computed money value thereof.

One object of this present invention is to provide a liquid fueldispensing and price computing apparatus which will accurately andefficiently register the delivery of unit quantities of liquid of tencent value or multiple values thereof.

Another object of this invention is to provide a liquid dispensingmachine ,of the character described whereby the total quantity of liquiddischarged in gallons or fractions thereof, and the price per unitquantity of liquid, as Well as the total computed cost of the liquiddispensed, are clearly visible to the operator and consumer at alltimes.

Another object of this invention is to provide a liquid fuel dispensingand price computing apparatus whereby the total price of any liquiddispensed in any desired unit quantity or fractions thereof and theexact quantity delivered are visibly indicated on a dial which isadjustable to correspond to the price variations of units dispensed.

Another object of this invention is to provide a liquid dispensingdevice which comprises a readily visible means for indicating thequantity of liquid dispensed, the price per unit of liquid, the totalcomputed. price of the quantity of fuel dispensed in any particularservice transaction and the sum total quantity of fuel dispensed by themultiple transactions.

A further object is to construct a liquid dispensing device of thecharacter described which, upon delivery of a predetermined quantity ofliquid, will automatically cut oif the supply of liquid through thedispensing means until the resetting of the computing means has takenplace.

A further object is to provide in a machine of this nature, meanswhereby the price computing mechanism can be manually reset withoutdisengaging the meter driving connections to the price computingmechanism.

A further object is to provide means for eliminating the backlash in thegear mechanism of the quantity and price computing means.

Another object is to construct a dispensing device and indicatormechanism so that the indicating means cannot be tampered with duringthe dispensing operation. To effect this, means is provided forautomatically disconnecting the quantity and price indicator resettingmechanism which is initiated by the removal of the fluid delivery nozzleconduit from its support and automatically connecting said mechanism onreplacement 'of the nozzle to its initial position.

' Another object is to provide an indicating mechanism which comprisesmeans for counterbalancing the weight of moving parts to produce asmoothly operating indicator mechanism.

Another objectis to provide means whereby, the price per unit quantityof fluid dispensed by the apparatus can be readily changed as requiredcomprising the use of tape having different unit price charts spacedthereon and reels for positioning the tape.

In the accompanying drawings:

Figure l is a front view in elevation of the liquid or fuel dispensingdevice of this invention;

Figure 2 is a right-hand side elevation view, partly broken away, withthe side panel removed showing the quantity and price indicatingmechanism and means employed for changing the unit quantity pricedisplayed by the cost tape;

Figure 3 is a similar View of the mechanism shown in Figure 2, takenfrom the left side;

Figure 4 is a plan View taken on the line 44 of Figure 1, looking in thedirection of the'arrows;

Figure 5 is a similar plan View taken substantially along the line 55 ofFigure l and looking in the direction of the arrows;

Figure 6 is a front elevation of the dial and reciprocable marker meansfor indicating the quantity and computed cost of the liquid dispensed,the associated parts being broken away so as to show the arrangement ofthe parts more plainly;

Figures '7, B, 9, l0 and 11 inclusive are fragmentary detail views ofthe rotatable pawl member for indicating the dispensing of unit moneyvalue quantities of fluid;

Figure 12 is a detail vertical section taken through the friction diskclutch and manual dial resetting means, illustrating the associatedcumulative quantity recording mechanism in elevation;

Figure 13 is a fragmentary view of the rear side of the dispensing p mpdial showing the arrangement thereof;

Figure 16' is a fragmentary View in elevation of the verticalreciprocable marker mechanism and associated stationary rack means;

Figure 1'7 is a fragmentary detail sectional view taken on the lineI'l-ll of .Figure 6-, showing. the means for vertically adjusting thestationary rack;

Figures 18 and 19 are views in elevationof the fluid delivery cut-offvalve and tripping lever assembly showing the valve in open and closedposition respectively;

Figure 20 is a fragmentary detail perspective view illustrating thelatch construction of the tripping lever member;

Figure 21 is. a detail view insection of. the; price adjusting tapemeans and taken on the: line 2l-2l. of Figure 6;

Figure 22 is a detail view of the.- backlash elimmating. gear member.

Referring to the drawings. in detail, the dispensing apparatusillustrated in- Figures 1 t 5 inclusive comprises a vertical housing 23having.

enclosed in the upper part the: improved, quantity and cost computingindicator mechanism of. this invention. In the lower part of the chamberformed by the housing member 23 is located" a motor 25 which is arrangedto operate a rotary pump (notshown) for forcing the liquid or fluid Ibeing dispensed through anseparator 26, strainer 21-, meter 28; ofconventional design, computing. mechanism 24,, illuminated spinnerflowindicator 29 and. outward, by suitable. conduit con.

nections. through flexible dispensing hose. 30v and nozzle 31. Theassembly of the; parts in the housing is maintained in properrelationship by means of the frame generally designated 32 The nozzle itwhen not in. use. is normally retained at the side: of the; housing 23on the. end

of the lever 33 which is pivoted tothe. frame structure asat 34.Pivotallysecuredto the opposite end of the lever 33 is a rod 35 which.operates-the on and off. switch 35- (Figure 4) of the. motor 25.

The weight of the nozzle 3|: and attached hose ordinarily maintains therod 35 raised so that the motor swi-tchis held in the off position. Whenthe nozzle is removed from the end. of the lever 33, the rod 35 ispermitted to descend and move the motor switch to on position. Similarlyfastened to the lever 33 is a rod 35a which. declutches the manual meansfor resetting or manipulating. the indicating mechanism when the nozzleis removed from its support.

Quantity and price computing dial mechanism Illustrated in Figures 1, 5,6 and 13 is the qua-m tity and. price indicating mechanism of. this.invention. which comprises afront rear. visible dial means generallydesignated and 31a, re spectively. The dial face comprises spaced chartsof indicia the; chart to-the left and designated- 38 consisting 0i anumber of. equally spaced digitsfrom. 0 to. 10 and: denoting theunitua-ntitiesv of liquid dispensed. The. chart to the right and indicatedat 42 shows the total price of the liquid delivered computed at theprice per unit quantity as shown at the. top of they cost chart.

On the rear dial 31a the cost indicator chart col-'- umn and quantitydelivered chart indicia 38a are in reversed position as illustrated inFigure 13. In the drawings the quantity unit employed is gallons but itwill be understood that other units of measure, such as quarts, pints,liters, etc, may be used if desired.

The quantity units on the dial face chart 38 and corresponding rear dialface chart 38a are expressed in whole numbers which are equally spacedfrom each other accurately t scale with the zero digit at the bottom andthe maximum unitquantity figure at the top of the chart. The dial facechart members may be made of any suitable-material which willefficiently display the numerals thereon, and are normally fixed to theupper and lower horizontal frame support members 39 by the screws 40. Anopening in the lower portion. of the dial face chart 38 is provided fordisplaying the quantity totalizing counter means'4l.

The cost price indicating chart 42 is suitably displayed through anopening in the face of the fixed plate 43. Screws 44 on the extendedhorizontal frame support-members- 39 are. used to secure. the plate. 43in. place,. as illustrated in Figure 6.

The cost price chart 42 and quantity or volume indicating chart 38 arearranged so that their zero readings are at the. bottom of the charts.Graduations. on the price. computing chart 42 preferably comprise two.spaced columns of. fig.- ures, one showing the total. computedv price ofeven. number of gallons or unit quantities of fluid dispensed and theadjacent column of figures showing the computed. price of fractionalunit amounts. In my preferred embodiment accurate. readings of ten centfractions of liquid dispensed. may be. made, as illustrated in. Figures1 and 6. Ifdesired. still smaller fractions. may be provided for bymodifying the price computing scale: chart 42.

Vertically movable over the front and rear dial faces. 3'! and 31a arethe indicator longitudinally movable. pointer members generallydesignated 45 and 15a, respectively. The front and rear dial indicatormembers are of similar constructionand. consist of a rectangular plate46 having. spaced openings or windows 41, 48 and 49 therein. arrangedfor displaying therethroughthe even unit quantity indicia, fractionalquantity and. total computed price value of the liquid dispensed. In therear indicator 45a the windows are arranged. to accommodate the changed.position of the dial charts; otherwise the construction is the same.

In a frame or outer rim portion of the indicator is fitted a transparentsheet. or panel 50, as shown in Figure 14. The transparent sheet member501s suitably spaced from the face of the plate 46- as' illustrated inFigure 14 so as not to interfere with the reciprocable pointer member 5iwhich cooperates with the price computing indicia scale 42 to indicatethe dispensing of ten cent unit quantities of liquid, as hereinafterdescribed.

Indicator members 45 and 45a are fastened at the rear to sli'dableindicator bracket members 52 and 52arespe'ctively by means of machinescrews 53. Bracket members 52 and 5211 move vertically along the fixedgear racks 54 and 54a respectively. The" indicator bracket members 52and 52a: are of similar construction and are fastened together by meansof the crossbar 55', as illustrated in Figure 2;

Referring to Figures. 14, 15 and; 16, it will be observed the indicatorbracket comprises a flanged head member 56 having a central apere ture51 through which extends the fixed gear rack t. Gear teeth 58 on thisrack are engaged by an idler pinion gear 59 which is attached to theshaft of the drum 6t so that the drum is rotated when the bracket, ismoved up or down the fixed rack 5d. The shaft of the drum BB is suitablymounted in the bracket head, as shown in Figure 14. On the surface ofthe drum 6!) are carried the fractional gallon indicia which areaccurately spaced so that the correct fractional readings will bedisplayed through the window 48 of the indicator i5 as it is movedvertically. Spring means 6! permits the bracket to yield transversely asit moves along to conform with the shape of the fixed rack.

Attached to the slidable head. member 56 is a T-shaped plate 62 to whichis secured the gear rack as shown in Figure 16. A similar member isdisposed at the back of the rear dial face of the indicating mechanism.Pinion gears 68 on the end of the transverse shaft 65 are arranged tomove the indicator bracket head members and 5611 together with theattached indicator members 435 and a vertically along the fixed racks 63and 63a, respectively, as will be noted in Figure 3. Shaft 65 which issuitably secured to the fixed frame member 39 is rotated by the metershaft 66 connected thereto through the gear box 68, as shown in Figure16.

Counterbalancing mechanism To provide a smoothly operating mechanism,counterbalancing weights generally designated 69 are slidably attachedto vertically disposed rod.

means it which are to act as guides during the vertical movement of theweights. Flexible metal tape members generally designated H are con- 7.nected in pairs to each of the reciprocable indicator bracket membersand a counter-balancing weight as illustrated in Figures 2 and 3. Thetape means are drawn over the respective pulley wheels '42 and aresuitably secured to the indicator bracket members 45 and 45arespectively by screws 53, as shown in Figure 15. The flexible tapemembers H also provide means for covering the vertical-slots in the faceof the dial which slots are required to permit vertical movement of theindicator and associated mechanism.

For covering the opening below the indicators, similar tape or extendedstrip means 13 and M are likewise fastened to the indicator and extenddownward therebeneath, as shown in Figure 6. Preferably the central tapeis has a spherical outer surface and is brightly colored so as toaccentuate the movement of the indicator over the dial.

Slight adjustment of the fixed rack 54 is provided for by the screw 15as illustrated in Figure 1'7. The pin it on the end of the screw engagesin a notch H in the back of the rack so that upon rotating the screw therack will be moved vertically. A look nut '18 is employed for securingthe screw against movement after proper adjustment has been made. Therack 54 is fastened at its ends to the frame member 39 by means of thepins 88 which are positioned in the elongated aperture 8i, as shown inFigure 17. Movement of the fixed rack E l results in rotation of thefractional. drum as so that proper alignment of the fractional gallonindicator indicia can be accomplished to initially set the mechanism foraccurately indicating the quantity of fluid dispensed.

Mechanism to indicate dispensing often centunit' quantities of liquidThis mechanism, as shown in Figures 6 to 11 inclusive and 14, comprisesa pointer 5| which is pivoted to the indicator plate 46 as at 83. pawl84 is arranged to engage in the spaced holes 85 of the cost tape andhold the pointer in a horizontal position as illustrated in Figures 6and 8. The holes 85 are accurately spaced to scale and calibrated withthe meter so that when the pointer 5! has moved from one horizontalposition adjacent one of the holes 85 to the next, a volume of liquid often cent value will have been dispensed.

The pawl 84 is pivotally secured to the flange 85 of the plate it bymeans of the screw 86. Attached to the screw 88 on the outward end ofthe pawl is a coil spring 87 which normally urges the pawl in engagementwith the holes 85. Lengthwise movement of the pawl is provided for bythe elongated slot 88 permitting the pawl to move backward, as shown inFigure 10, when necessary.

Mechanism for resectting the indicator to zero In Figures 5 and 12,clutch means is illustrated which permits the resetting of theindicators to zero reading without disconnecting the meter drive shaftfrom the indicator. As shown, the meter drive shaft 68 drives the shaft65 to elevate the indicators 45 and 45a. through the gear train 89, 96,friction disk means 9i, shaft 92, universal 93 and bevel gears 94 and95. The latter gear is keyed to the shaft 35. Gear 9% drives the shaft92 through the friction disk member 9| which is fastened to the shaft92.

Adjacent the top wall of the gear box 6'! there is positioned anotherdisk member 93 which is also secured to the shaft 92. A coil spring 86ais interposed between the disk 96 and th gear 97 which maintains thegears 9'1, and friction disks 8i firmly together so that the gear 93 andshaft 92 and associated parts will rotate in unison. The bevel gear 91meshes with gear 98 keyed to the shaft 99 which drives the quantitytotalizing counter means 4!. Gears 89 and 90 are pre vented fromrotating counter to the direction in which they are rotated by the metershaft 66 by the ratchet wheel ml and engaging spring pressed pawl meansgenerally designated Hi2. Preferably multiple sets of different sizeteeth and engaging pawls are arranged on the wheel IEII to eliminateback play.

Manual rotation of the shaft 65, as when returning the indicatormechanism to zero, is accomplished b revolving the pinion gear M3 bymeans of the crank I04 through the clutch mechanism me. When the fluiddelivery nozzle 3! is supported on the lever 33 the clutch parts areengaged as shown in Figure 12. Upon lifting the nozzle 3i off the end ofthe lever 33 rod 35a reciprocates the bell crank I 96 against the spring97 declutching the shaft Hitato which the gear N33 is keyed so that itcannot be rotated by turn ing the crank l M. This declutching occurswhen the hose nozzle 3! is disengaged irom'the lever 33'which allows therod 35a to descend declutching the member H35 as heretofore mentioned.

Price computing tape changing means have retained thereon a plurality ofprice charts. These charts are accurately laid out on the tape and are.moved in position in front of. the dial windows. The tape is wound backand forth on the spaced reels I98 and I99, as illustrated in. Figure 2,to position the desired price chart in the dial windows. It will beunderstood that the various price charts will be made in pair and spacedso as to be readily positioned in the windows of the opposed dial faces.

When installing th cost price tape one end may be fastened to the reelI08 and the tape drawn around under guide roll II up beneath the frontdial window, then over the top of the guide roll II I, downward underguide roll I I2, up beneath the rear dial window, thence over guide rollH3 and finally around the reel I09, as illustrated in Figures 2 and 3.

Referring to Figure 2'. reel I08 and guide rolls H0 and H2 positioned atthe bottom of the indicator mechanism have their respective shaftsrotatably mounted in the bracket I I4 which suitably extends from thefront to the rear side of the device.

to the frame members 38. The opposite endpf This bracket is bolted atthe ends the axle shaft of the reel I08 and guide rolls IIO and H2v isjournaled in the support IIIi. Near the top of the machine the reel I09and cost tape guide rolls III and H3 are journaled in a U- shapedbracket III the ends of which are fastened to the frame support means39. Reel I00 is rotatably mounted in the depending journal portiongenerally designated H9 of the bracket III.

Guide rolls III and H3 are mounted on the horizontally extended arms Iand I 2| respectively of the bell crank members generally desig-.

nated I22 and I23, which are in turn pivotally supported to theupstanding flange members on the bracket II! as at I24 and I25respectively. The opposed bell crank arms I25 and I 21 are yieldablyurged toward each other by the spring has been adjusted to preventloosening. or unrolling of the same. Hand cranks I32 and I33 extendoutward at the side of the indicator mechanism to provide means forrotating the reelsto position the tape.

In order to accurately position the cost tape in place in the windows ofthe dials, an aligning aperture I34 is positioned in the tape below thechart, as shown in Figures 6 and 21, in which is engaged. a set screwI35. This screw is retained in the link I 36 which is pivoted beneaththe window of. the dial as at I31. After positioning the screw means Ithe reel I09 is rotated to draw the cost tape taut. As illustrated inFigure 5, the idler pinion 59a is of elongated construction to permitthe proper positioning of the fractional gallon drum. 60a onthe opposedor rear dial. face arranged as shown in Figure 13.

Automatic fuel delivery valve cut-017 mechanism On the crossbar 55interconnecting the vertically moving indicator members and 45a is fixedan adjustable screw member I38 which is adapted to contact the outer endof the rock bar I39 when the indicator members have'moved to the top ofthe dials, indicating the delivery of the maximum quantity of liquidcomputable on the :a smooa dial'chart. The bar I39 is; pivoted to the.member I40 and is; adapted toyieldably'maintain the valve I4-I: open bylatching the hand lever I42 controlling the valve in open position.Spring means I43 is fastened tov the lever I42 and automatically closes.the valve: when the bar I39 is rocked so as to free the end of the. barfrom the arm I44 of the lever I42, as shown in-FigureslB and 19'. The.member I40 which supports the lever I39 is fastened to the frame membersII'I. Spring means Mfiis attached to the bar I39; as at I4'I,.andnormally maintains the rock bar- I39 in position to be latched to thelever arm- I44. The latch is preferably constructed as. shown in Figure20 and comprises a. hook-like: projection MB on the: end of the leverarm I44. The hook is adapted to slide over the beveled flange extension.I 49 on the bar I39 and engage in the notch I50 adjacent the end. of thebar.

Backlash eliminator For eliminating the. backlash or play between theteeth of the gear 59- in the indicator and the fixed rack 54 the. gearsare. of split construction. as shown in Figures 1.4, 16 and 22. Theinner gear. portion I5 I is attached to a coil spring I52, the end ofwhich is secured to the collar I53 and yieldably forces the teeth. ofthe gear in contact. with the teeth on the rack. In. this manner thegears are made to. fit snugly together taking up the play between theteeth and produce a steady operating indicatorv mechanism.

In operation it will be understood after adjusting the cost tape on the.dials to correspond to the prevailing unit price of the liquid dispensed, the apparatus is ready to be operated and opening the nozzlevalve. Rotation of the meter shaftv 66 drives the shaft and attachedpinions to. elevate the indicator members 45 and 45a over the opposeddial faces in accordance with the fluid passing through the meter andbeing delivered. It will be observed thatv in order to manually resetthe indicatormechanism to zero reading it is necessary to first returnthe hose nozzle to its. support. This prevents manipulation orinterference with the indicator mechanism during the dispensingoperation.

The above description of this invention constitutes one embodimentthereof, but it is to be understood that this. invention is not.limited. to the details of" construction as various modifications willoccur to persons skilled in the art,

Havin thus fully described our invention,v what we claim as new anddesire to secure by Letters Patent is:

1. In liquid dispensing apparatus having flow establishing means andliquid metering means, indicating means movable by the liquid meteringmeans from an initial position in proportion to the amount of liquidpassed through the metering means, means comprising a valve, forautomati'cally cutting off the supply of liquid from the flowestablishing means when the maximum quantity of liquid readable on theindicating means has been dispensed, and means requiring the resettingof the indicating means and automatic valve cut-off mechanism before theflow of liquid can be re-established through the dispensing means.

2. In an indicating mechanism, a fixed chart having indi'cia thereon forindicating unit quantities, movable chart means adapted to be fixedlyarranged adjacent and spaced from said quantity indicating chart forshowing cost corresponding to the amounts shown on the quantity chart,indicator means simultaneously movable over said quantity and costcharts for indicating the quantity and the cost, said indicator meansincluding a rotatable member for co-operating with said quantityindicating chart for indicating fractional unit quantities, said costshowing means comprising a plurality of difierent price indicatingcharts laid out in spaced relationship on a common movable base, andmeans for adjustably positioning said base member to display the desiredchart whereby the cost of the quantity indicated 'can be displayed atthe prevailing price per unit responding to the total amount of liquiddispensed up to a certain amount, and means movable over said charts inproportion to the amount of liquid dispensed starting from a zeroreading for simultaneously indicating the quantity of liquid dealt outand the total computed price thereof, said indicating means includingmeans operably engaging said price computing chart for accuratelyindicating the delivery of small fractional money value quantities ofliquid.

4. In liquid dispensing apparatus having liquid flow establishing means,metering means, conduit means connected to said metering means, flexiblehose including a nozzle means connected with said conduit for dispensingliquid, 3, support for said flexible hose and nozzle means, indicatormeans movable in proportion to the amount of liquid passed through saidmetering means, means operable to return the indicator means to initialposition only after positioning the delivery hose means on its support,means to prevent the operation of the indicator resetting means whilesaid delivery means is removed from its support, valve means in saidconduit for controlling the flow of liquid to said hose and nozzlemeans, and means operatively associated with said indicator to actuatethe automatic closing of said valve stopping the flow of liquid to saidhose upon delivery of the maximum quantity of liquid capable of beingindicated by said indicator.

5. In a fluid dispensing" mechanism, a, fixed quantity indicating chart,a price computing chart, said price computing chart being adjustablerelative to said quantity chart, an indicator means simultaneouslymovable over said quantity and price computing chart, means for moving.

said indicator from an initial position in proportion to the quantity offluid dispensed during a transaction, and a movable fractional quantityindicating means associated with said movable indicator means andco-operating with said fixed quantity indicating chart to indicate thefractional amounts of liquid dispensed together with the unit amounts,said indicator visibly indicating the quantity and total computed priceof the fluid dealt out.

6. In an indicating mechanism, means comprising an adjustable tapehaving a, cost chart and a price thereon for display, a separate chartlocated adjacent to said tape for indicating quantities, means movableover said charts for indicating quantity and the cost and price thereof,means carried by said indicating means for indicating smaller priceunits, and means comprising adjustable reels and yieldable guide rollsfor positioning said tape.

7. In indicator mechanism, the combination of means for indicating unitquantities comprising a chart, means rotatably associated therewith andwhose axis moves in a path which is parallel to said unit quantityindicating means for indicating fractional unit quantities.

8. In an indicating apparatus, means for indicating quantity andcomputed price, said means comprising a chart for displaying unitquantity indicia for representing unit amounts, 9. separate pricecomputing chart arranged adjacent thereto and spaced therefrom,indicator means movable simultaneously over both charts for indicatingthe quantity and total computed price values, and

